<div class = "entry-container">
    <script>
        $('.entry-container').width(window.screen.width);
        $('.entry-container').height(document.body.clientHeight);
        $('.entry-container .btnsContainer').height(window.screen.width / 4);
        $('.entry-container .btnsContainer').css('marginTop', -1 * window.screen.width / 8);
        $('.entry-container .entry').css('lineHeight', window.screen.width / 4 + 'px');
    </script>
    <div class = "login-bg-opac"></div>
    <div style = "position: absolute;left:0px;top:50%;width:100%;" class = "btnsContainer">
        <div class = "perW80 h bc">
            <div class = "tc fl perW25 h entry">
                <span ng-click = "toDbManager()">数据管理</span>
            </div>
            <div class = "tc fl perW25 h entry">
                <span ng-click = "newPage()">新建报表</span>
            </div>
            <div class = "tc fl perW25 h entry">
                <span ng-click = "toPages()">查看报表</span>
            </div>
            <div class = "tc fl perW25 h entry">
                <span ng-click = "toSysManager()">系统管理</span>
            </div>
        </div>
    </div>
</div>